I was about 7 or 8 years old, so lets say the year was between 1976-1977. My parents took me to the drive in, as they had before and I always slept during the movies. However on this occasion, I was awake and watched some of the movie.

There was a guy raping women in a town. The scene I remember was at a factory / plant of some sort, he chased her up some stairs inside a building at the factory, they were in a room with tools, generators, etc. where he proceeded to "take care of her". I don't know if he was killing them off or not. During this scene, the camera would pan away from the "actors" and look out the window.

The song "walk away renee" by The Left Banke was played several times during this movie.